Welcome! ZZJG VALVE Factory Can Offer High Quality Line Blind Valves And Goggle Valves.
The blade is usually open. In case of fire, the smoke temperature in the pipe reaches 70℃ and it will fuse and close. It can also be closed electrically by DC24V, and it can meet the requirements of smoke leakage and fire resistance integrity within a certain period of time, playing a role in smoke isolation and fire prevention.
Nominal pressure: ≤300Pa at ambient temperature
Applicable media: air, smoke, dust gas, etc
Material: galvanized sheet material
Fuse action temperature: 70° (or 280°)
Valve fire resistance level: 1.5h
Leakage: leakage per unit area ≤700m³/m².h
Automatically closes on heat/smoke, halting spread to protect building zones.
Intumescent gaskets (e.g., graphite) expand when heated, enhancing barrier against smoke/flames.
Fire-rated materials (e.g., galvanized steel) withstand extreme temperatures without failure.
Works with alarms for coordinated response, boosting building safety efficiency.
The professional 3D software for structural analysis, material selection and process planning to virtually simulate the reliability of materials under different temperatures, mediums andpressures, and finally validate them through finite element analysis to provide customers with safe and reliable products.
From raw materials to production, sealing performance testing, strength testing, functional testing, to surface quality testing and packaging and shipping, the whole process is strictly in accordance with API standards and support third-party independent organizations to test and certify our products.
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